{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "The parameters of the toxicodynamic model are related to the growth characteristics of algae cells , a no effect concentration , the chemical efficacy as well as the ability of recovery and repair , and the delay during damage propagation ."}
{"Chemical": []}